//--------------------------------------------------------------------------
//	Copyright (c) 1998-2004, Drew Davidson and Luke Blanshard
//  All rights reserved.
//
//	Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are
//  met:
//
//	Redistributions of source code must retain the above copyright notice,
//  this list of conditions and the following disclaimer.
//	Redistributions in binary form must reproduce the above copyright
//  notice, this list of conditions and the following disclaimer in the
//  documentation and/or other materials provided with the distribution.
//	Neither the name of the Drew Davidson nor the names of its contributors
//  may be used to endorse or promote products derived from this software
//  without specific prior written permission.
//
//	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
//  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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//  THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
//  DAMAGE.
//--------------------------------------------------------------------------
package com.ishitong.freesql.ognl;

/**
 * This interface defines some useful constants for describing the various
 * possible numeric types of OGNL.
 * 
 * @author Luke Blanshard (blanshlu@netscape.net)
 * @author Drew Davidson (drew@ognl.org)
 */
public interface NumericTypes
{
	// Order does matter here... see the getNumericType methods in ognl.g.

	/**
	 * Type tag meaning boolean.
	 */
	int BOOL = 0;
	/**
	 * Type tag meaning byte.
	 */
	int BYTE = 1;
	/**
	 * Type tag meaning char.
	 */
	int CHAR = 2;
	/**
	 * Type tag meaning short.
	 */
	int SHORT = 3;
	/**
	 * Type tag meaning int.
	 */
	int INT = 4;
	/**
	 * Type tag meaning long.
	 */
	int LONG = 5;
	/**
	 * Type tag meaning java.math.BigInteger.
	 */
	int BIGINT = 6;
	/**
	 * Type tag meaning float.
	 */
	int FLOAT = 7;
	/**
	 * Type tag meaning double.
	 */
	int DOUBLE = 8;
	/**
	 * Type tag meaning java.math.BigDecimal.
	 */
	int BIGDEC = 9;
	/**
	 * Type tag meaning something other than a number.
	 */
	int NONNUMERIC = 10;

	/**
	 * The smallest type tag that represents reals as opposed to integers. You
	 * can see whether a type tag represents reals or integers by comparing the
	 * tag to this constant: all tags less than this constant represent
	 * integers, and all tags greater than or equal to this constant represent
	 * reals. Of course, you must also check for NONNUMERIC, which means it is
	 * not a number at all.
	 */
	int MIN_REAL_TYPE = FLOAT;
}
